Increase/decrease and LED brightness by PC command, and send a response to the PC via a terminal window.

Dependencies:   mbed

Files at this revision

API Documentation at this revision

Comitter:
saltire78
Date:
Fri Jul 31 12:19:03 2020 +0000
Commit message:
online posting

Changed in this revision

main.cpp Show annotated file Show diff for this revision Revisions of this file
mbed.bld Show annotated file Show diff for this revision Revisions of this file
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Fri Jul 31 12:19:03 2020 +0000
@@ -0,0 +1,20 @@
+#include"mbed.h"
+
+Serial pc(USBTX,USBRX);//tx,rx
+PwmOut led(LED1);
+float brightness=0.0;
+
+int main(){
+    pc.printf("Press 'u' to turn LED1 brightness up, 'd' to turn it down\n");
+    while(1){
+        char c =pc.getc();
+        if((c=='u')&&(brightness<0.5)){
+            brightness+=0.01;
+            led=brightness;
+            pc.putc('^');}
+        if((c=='d')&&(brightness>0.0)){
+            brightness-=0.01;
+            led=brightness;
+            pc.putc('v');}
+    }
+}
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mbed.bld	Fri Jul 31 12:19:03 2020 +0000
@@ -0,0 +1,1 @@
+https://os.mbed.com/users/mbed_official/code/mbed/builds/65be27845400
\ No newline at end of file